Co-Mail 

Co-mail is the process of combining your publication with others to get the best postal rates and deepest drop ship penetration.  First, the mail files are combined into one mailstream – allowing all the publications in that pool to achieve the most favorable rates and drop ship discounts. Then, each catalog or magazine is placed on the co-mail equipment, into a separate pocket (hopper) – normally around 30 pockets.  The files tell the machine which pockets to pull from and then address each piece, allowing the different publications to be mixed within bundles.

This option is used for FLAT size mailings, less than 1lb, Standard or Periodical Mail.